Shell-and-tube heat exchanger and cooling or heating system comprising a shell-and-tube heat exchanger

Abstract

The present invention relates to a shell-and-tube heat exchanger (2), comprising a housing (10) which extends along a longitudinal axis (X) and comprising a housing wall (16) enclosing an interior space (15), a tube bundle (20) with a plurality of tubes (25) which are guided through the interior space (15) along the longitudinal axis (X), and at least one deflector plate (30), wherein at least one sealing element (40) is arranged which seals a gap (19) between the at least one deflector plate (30) and the housing wall (16), wherein the at least one sealing element (40) comprises a first portion (41) and a second portion (42) angled towards the first portion (41), and wherein the second portion (42) comprises at least two tabs (45) which project from the first portion (41). In addition, the present invention relates to a cooling or heating system (1).

1 . A shell-and-tube heat exchanger ( 2 ), comprising
 a housing ( 10 ) extending along a longitudinal axis (X) and comprising a housing wall ( 16 ) enclosing an interior space ( 15 ),   a tube bundle ( 20 ) with a plurality of tubes ( 25 ), which are guided along the longitudinal axis (X) through the interior space ( 15 ), and   at least one deflector plate ( 30 ),   characterized in that   at least one sealing element ( 40 ) is arranged, which seals a gap ( 19 ) between the at least one deflector plate ( 30 ) and the housing wall ( 16 ),   wherein the at least one sealing element ( 40 ) comprises a first portion ( 41 ) and a second portion ( 42 ) angled towards the first portion ( 41 ), and   wherein the second portion ( 42 ) comprises at least two tabs ( 45 ) projecting from the first portion ( 41 ).   
     
     
         2 . The shell-and-tube heat exchanger ( 1 ) according to  claim 1 ,
 characterized in that   the first portion ( 41 ) is arranged on the at least one deflector plate ( 30 ) and the second portion ( 42 ) bears against the housing wall ( 16 ), or the first portion ( 41 ) rests against the housing wall ( 16 ) and the second portion ( 42 ) is arranged on the at least one deflector plate ( 30 ).   
     
     
         3 . Shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the second portion ( 42 ) rests pre-tension against the housing wall ( 16 ) or against the at least one deflector plate ( 30 ).   
     
     
         4 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least one sealing element ( 40 ) is made from a thin sheet metal, preferably with a sheet thickness of less than 1 mm.   
     
     
         5 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   a slot ( 46 ) is arranged between the at least two tabs ( 45 ), which slot is preferably V-shaped.   
     
     
         6 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least two tabs ( 45 ) are each angled along a bending edge ( 43 ) by bending.   
     
     
         7 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least one sealing element ( 40 ) has a passage ( 49 ) which opens the gap ( 19 ).   
     
     
         8 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least one sealing element ( 40 ) is fastened to the at least one deflector plate ( 30 ) by at least one fastening means ( 50 ).   
     
     
         9 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least one fastening means ( 50 ) comprises a counter-holder ( 54 ), wherein the at least one sealing element ( 40 ) is held clamped between the counter-holder ( 54 ) and the at least one deflector plate ( 30 ).   
     
     
         10 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least one deflector plate ( 30 ) has at least one recess ( 34 ) and at least one perforation ( 32 ) for at least one tube ( 25 ) of the tube bundle ( 20 ).   
     
     
         11 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the interior space ( 15 ) of the housing ( 10 ) has a first inlet opening ( 11 ) and a first outlet opening ( 12 ) along the longitudinal axis (X), and in that the at least one deflector plate ( 30 ) is arranged along the longitudinal axis (X) between the first inlet opening ( 11 ) and the first outlet opening ( 12 ).   
     
     
         12 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the at least one sealing element ( 40 ) is arranged on the side of the at least one deflector plate ( 30 ) facing the first inlet opening ( 11 ).   
     
     
         13 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the second portion ( 42 ) of the at least one sealing element ( 40 ) protrudes from the first portion ( 41 ) on the side facing the first inlet opening ( 11 ).   
     
     
         14 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   a plurality of deflector plates ( 30 ) are arranged between the first inlet opening ( 11 ) and the first outlet opening ( 12 ).   
     
     
         15 . The shell-and-tube heat exchanger ( 2 ) according to  claim 1 ,
 characterized in that   the plurality of deflector plates ( 30 ) with the at least one recess ( 34 ) are arranged alternately along the longitudinal axis (X) in order to provide an undulating or meandering flow path from the first inlet opening ( 11 ) to the first outlet opening ( 12 ).   
     
     
         16 . A cooling or heating system ( 1 ) comprising a shell-and-tube heat exchanger ( 2 ) according to  claim 1 .